Screening attachment for coal-wagons.



J. R. LAWRENCE. v SCREENING ATTACHMENT FOR COAL WAGONS.

APPLIOATIONIILED APR-17, 1914.

Patented Mar. 2, 1915.

I ill l m A TTORA/EV NORRIS PETERS 60., PHOTO-LITHU.. WASHINGTON, B4 c.

JOHN R. LAWRENCE, F SARNIA, ONTARIO, CANADA, ASSIGNOH'OF ONE-HALF TOJAMES G'U'IHBER'I. CLARK, 0F SARNIA, CANADA.

SCREENING ATTACHMENT FOR GOAL-WAGONS.

Specification of Letters Patent.

Patented-Mar. a, an.

Application filed April 17, 1914.. Serial No. 832,498.

, Ireland, residing at Sarnia, in the Province of Ontario and Dominionof Canada, have invented certain new and useful Improvements inScreening Attachments for Coal- Wagons, of which the following is aspecification, reference being had therein to the accompanying drawings.

The invention relates to screening devices and has for its particularobject the provision of meansfor screening coal without the necessity ofan additional handling. In the present state of the art it is usual incoal yards to screen the coal immediately preceding the loading of thesame into the wagon. This generally requires the cooperation oftwolaborers, one shoveling the coal upon the screen and the othertransferring the screened coal to the wagon. With my improvedconstruction the work may be performed by a single man, who shovels thecoal into the screening attachment, from which it passes directly intothe wagon.

In the drawings: Figure 1 is a cross sec. tion through a wagon towhichmy improvement is applied; and Fig. 2 is a perspective view of theattachment removed from the wagon.

A is a casing provided with sides B and a screen bottom G extendingbetween said sides.

D is a hopper-shaped receptacle above the screen having a restrictedmouth or discharge opening E adjacent to the screen.

F is an apron or tubular chute, preferably formed of a flexible fabricand attached to the casing A so as to surround-the screen 0 and dependtherefrom.

G are hooked-shaped bearings attached to the lower end of the casing A'adapted to rest upon the side-board Hof the wagon box I.

J are tie connections attached to the upper end of the casing andadapted to be secured to the opposite side of the wagon boX, asindicated at K so as to hold the casing in an inclined position, shownin Fig. 1.

topics of this patent may be obtained for five cents each, by addressingWashington, D. 0.,

With the construction as described, the apron or cloth chute F- may beconnected with a suitable box or receptacle for holding the screenings,and the operator then shovels the coal into the hopper D, from which itpasses downward over the screen 0. This will separate out the dust,which falls through the chute F, while the screened coal will fill theWagon box. The device can be quickly shifted from one wagon to another,and thus the wagons may be successively filled with screened coalwithout increasing the labor over that required for filling them withunscreened coal.

What I claim as my invention is 1. YA device for the purpose described,comprising a casing including a screen bottom and a hopper above saidscreen adapted to discharge the material fed into said hopper on to saidscreen, said casing having hooked bearings at its lower end engageablewith the sides of a receptacle, and tie connections withthe oppositeside of said receptacle for holding said casing in inclined position,and a flexible apron surrounding and depending from the screen forreceiving the screenings, said screen being so positioned that thelarger pieces will be discharged into the receptacle.

2. A device for the purpose described, comprising a casing including ascreen bottom and a hopper above said screen adapted to discharge 1 "thematerial fed into said hopper on to said screen, said casing havinghooked bearings at its lower end engageable with the sides of areceptacle, and tie connections with the opposite sides of saidreceptacle for holding said casing in inclined position, said screenbeing so positioned that the larger pieces will be discharged into thereceptacle and the smaller pieces outside thereof. 1

In testimony whereof I affix my signature in presence of two witnesses.

JOHN R. LAWRENCE.

Witnesses: WM. J. BELKNAP,

JAMns P. BARRY.

the Gommissioner of Patents,

